NAME

       ares_gethostbyname_file - Lookup a name in the system's hosts file

SYNOPSIS

       #include <ares.h>

       int ares_gethostbyname_file(ares_channel channel, const char *name,
            int family, struct hostent **host)

DESCRIPTION

       The  ares_gethostbyname_file  function performs a host lookup by name against the system's
       hosts file (or equivalent local hostname database).  The channel  parameter  is  required,
       but  no  asynchronous  queries  are  performed.   Instead, the lookup is done via the same
       mechanism  used  to  perform   'f'   lookups   (see   the   lookups   options   field   in
       ares_init_options(3)).   The  parameter  name  gives  the  hostname  as a NUL-terminated C
       string, and family gives the desired type of address for the resulting host entry.

       The return value indicates whether the query succeeded and, if not, how it failed.  It may
       have any of the following values:

       ARES_SUCCESS       The  host  lookup  completed  successfully  and  host now points to the
                          result (and must be freed with ares_free_hostent(3)).

       ARES_ENOTFOUND     The hostname name was not found.

       ARES_EFILE         There was a file I/O error while performing the lookup.

       ARES_ENOMEM        Memory was exhausted.

       On successful completion of the query, the pointer pointed to by host points to  a  struct
       hostent containing the address of the host returned by the lookup.  The user must free the
       memory pointed to by host when finished with it by calling ares_free_hostent(3).   If  the
       lookup did not complete successfully, host will be NULL.

AVAILABILITY

       Added in c-ares 1.5.4

SEE ALSO

       ares_gethostbyname(3), ares_free_hostent(3), ares_init_options(3)

AUTHOR

       Brad Spencer
       Copyright 1998 by the Massachusetts Institute of Technology.

                                           25 July 1998                     ARES_GETHOSTBYNAME(3)